498 BOLBITIUS 



Gills pale, then rusty ochraceous, quite free, attenuated behind, 2 mm. 

 broad, linear, crowded. Flesh white, very thin. Spores rusty, elliptic- 

 oblong, 15 x 5-6/Li. Amongst grass. Sept. Rare. 



1630. B. fragilis (Linn.) Fr. Cke. Illus. no. 679, t. 720, fig. A. 



Fragilis, fragile. 



P. 1-5-2-5 cm., light yellow, then becoming pale, submembranaceous, 

 pellucid, conical, then expanded, subumbonate, smooth, viscid; margin 

 striate, often crenulated. St. 5-7-5 cm. x 2-4 mm., yellow, very fragile, 

 attenuated upwards, naked, smooth. Gills yellow, then pale cinnamon, 

 attenuato-adnexed, almost free, ventricose, 2-4 mm. broad. Flesh 

 yellowish, thin at the disc. Spores ferruginous, almond-shaped, 

 10-11 x 6-7 p.. Cystidia "vesiculose, 30-36 x 12-20/z" Rick. The 

 whole plant rapidly withering. Roadsides, road-scrapings, horse 

 dung, and pastures. April Nov. Common, (v.v.) 



1631. B. affinis Massee. Affinis, related. 

 P. 12 cm., yellowish tawny, whitish when dry, campanulate, then 



expanded, umbonate, glabrous, dry; margin striate. St. 4-7. cm., 

 white, attenuated upwards from a marginate bulb, shining. Gills 

 yellowish tawny, adnexed, narrow. Spores 8 x 6/x,. Rare. 



1632. B. titubans (Bull.) Fr. Cke. Illus. no. 680, t. 690. 



Titubans, tottering. 



P. 2-4 cm., light yellow at the disc, paler and becoming greyish at the 

 margin, membranaceous, very tender, ovato-campanulate, then flat- 

 tened and split, diaphanous, slightly viscid, striate; margin plicate. 

 St. 5-7-5 cm. x 1-2 mm., white, equal, very fragile, shining, some- 

 times mealy. Gills ochraceous, or purplish, then fuscous flesh colour, 

 or ferruginous, adnexed, or free, 2-3 mm. broad. Flesh whitish, 

 scarcely any except at the disc. Spores deep ochraceous, broadly ellip- 

 tical, 11-15 x 8-9 /n, with a hyaline apical germ-pore. Rich pastures, 

 gardens, and roadsides. May Oct. Common, (v.v.) 



1633. B. apicalis W. G. Sm. Cke. Illus. no. 679, t. 720, fig. B. 



Apex, the top of a thing, 



P. 8-15 cm., brown, disc ochraceous bounded by a darker line, mem- 

 branaceous, conical, 18 mm. high, obsoletely umbonate, striate, then 

 plicate to the apical disc, splitting at the margin. St. 5-6 cm. x 2 mm., 

 white, attenuated upwards from the thickened base, striate, minutely 

 pruinose under a lens. Gills brown, free, at first pressed to the stem, 

 ventricose, 3 mm. broad. Flesh white, thick at the disc. Spores 

 brown, elliptical, 9 x 6-7 /x. Pastures. June. Rare. 



1634. B. rivulosus B. & Br. Cke. Illus. no. 678, t. 928, fig. B. 



Rivulosus, rivulose. 



P. 23 cm., tan colour, campanulate, striate, rivulose. St. 7 cm. x 

 4-6 mm., white, attenuated upwards, smooth. Gills cinnamon, 



